#include "../etcd.hpp"
#include <gflags/gflags.h>
#include <thread>
#include <brpc/server.h>
#include <butil/logging.h>
#include "main.pb.h"

DEFINE_bool(run_mode, false, "程序的运行模式, false-调试, true-发布");
DEFINE_string(log_file, "", "发布模式下, 用于指定日志的输出文件");
DEFINE_int32(log_level, 0, "发布模式下， 用于指定日志输出等级");


DEFINE_string(etcd_host, "http://127.0.0.1:2379", "服务注册中心地址");
DEFINE_string(base_service, "/service", "服务监控根目录");
DEFINE_string(instance_name, "/echo/instance", "当前实例名称");
DEFINE_string(access_host, "127.0.0.1:7070", "当前实例的外部访问地址");
DEFINE_int32(listen_port, 7070, "Rpc服务器监听端口");


class EchoServiceImpl:public example::EchoService
{
public:
    EchoServiceImpl()
    {}

    ~EchoServiceImpl()
    {}

    void Echo(google::protobuf::RpcController* controller, const ::example::EchoRequest* request,
            ::example::EchoResponse* response, ::google::protobuf::Closure* done)
    {
        brpc::ClosureGuard rpc_guard(done);
            std::cout << "收到消息:" << request->message() << std::endl;

            std::string str = request->message() + "--这是响应！！";
            response->set_message(str);
    }
};

int main(int argc, char* argv[])
{
    google::ParseCommandLineFlags(&argc, &argv, true);
    init_logger(FLAGS_run_mode, FLAGS_log_file, FLAGS_log_level);

    //关闭brpc的默认日志输出
    logging::LoggingSettings settings;
    settings.logging_dest = logging::LoggingDestination::LOG_TO_NONE;
    logging::InitLogging(settings);

    //构造服务器对象
    brpc::Server server;
    EchoServiceImpl echo_service;
    int ret = server.AddService(&echo_service, brpc::ServiceOwnership::SERVER_DOESNT_OWN_SERVICE);
    if(ret == -1)
    {
        std::cout << "添加rpc服务失败" << std::endl;
        return -1;
    }

    //4, 启动服务器
    brpc::ServerOptions options;
    options.idle_timeout_sec = -1; //连接空闲超时时间-超时后连接被关闭
    options.num_threads = 1; // io线程数量

    ret = server.Start(FLAGS_listen_port, &options);
    if(ret == -1)
    {
        std::cout << "启动服务器失败" << std::endl;
        return -1;
    }

    Registry::ptr rclient = std::make_shared<Registry>(FLAGS_etcd_host);
    //注册的时候是 /service/echo/instance   发现的时候是 /service/echo
    //FLAGS_base_service + FLAGS_instance_name ： /service/echo/instance
    //FLAGS_access_host ： "127.0.0.1:7070"
    rclient->registry(FLAGS_base_service + FLAGS_instance_name, FLAGS_access_host);

    server.RunUntilAskedToQuit() ; //休眠等待运行结束
    return 0;
}